Pivotal joint for pipe



June 18,1929. .5. c. WEISGERBER PIVOTAL JOINT FOR PIPE Filed Sept 14, 1925 Patented June 18, 1929.

warren "srA'rns PATENT oF FicE;

PIVOTAL JOINT FOR PIPE.

Application filed September refinery installation into another element thereof.

t is an object of this invention to provide a simple and rugged joint construction suitable for use in connecting any two tubular elements which meet at an angle such as an angle of 90, more or less, saidconstruc tion permitting relative rotation therebetween, and permitting also a take-up in coinpensation for wear and also a ready renewal of wearing parts. 1

It is the further object of my invention to provide what may be termed a swing or swivel joint between pipes which shall comprise relatively few and simple parts, and which shall nevertheless provide ample hearing surfaces, between which gaskets may be inserted; and an advantageous embodiment of my invention may comprise an angle or elbow-casting of special construction, an inwardly extending flange 'surrminding one opening of this casting being adapted to en gage a, collar or'seat lip on one of the mentioned pipes; and within this casting I may inafter referred to respectively as an inlet 1 pipe and an outlet pipe, may intersect at various angles, and it is an important feature of my invention that, regardless of the angle between said pipes or tubular elements, the interior of the mentioned casting by which. the same are pivotally connected is suiliciently spacious, and aplugged opening thereto is of sufiicient breadth, to permit the insertion or removal of the mentioned employ a removable bearing plate or annular 14, 1925. Serial in. 56,249.

threaded bearing plate or annulus there.

through. The'mentioned plugged opening may moreover be used as a clean-out opening or for the attachment of an additional pipe, or for the temporary or permanent "attachment of a test cook, a pressure gauge,or the like.

Other objects of my invention may be best understood from the following description of an illustrative embodiment thereof, taken in connection with the appended claims and the accompanying drawings, in which Fig. 1 is a perspective view illustrating the use of my invention in connecting a vertical, pipe'with a horizontal pipeiin such manner as to permit the latter to be swung opposite any one of a plurality of receiving funnels disposed in an are about the axis of said vertical pipe.

Fig. 2 ,is a vertical section through an embodiment of iny invention in which two pipes are shown as pivotally joined at an angle of substantially 909.

Fig. 3 is a view corresponding to Fig. 2 but showing anembodiment of my invention in which the tubular element 'pivotallyconnected met at an. angle of approximately Referring to the details ofthatspecific embodimentof my invention illustrated in Fi s. 1 and 2 11 bein arbitraril re arded a; a y o as an inlet pipe and 12 as an outlet pipe, 13 is a specialangle casting or fitting constructed in accordance with tl'ieprinciples of my invention and provided with a comparatively large threaded opening of suiiicient diameter to permit the insertion or removal of a bearing plate or annular seat 15, shown as having, at 16, a threaded engagement with an extension 17 of the casting 13 and as co-operating T with iingersor an inwardly extending flange 18 on said extension in providing bearings for a collar or seat-lip 19, surr'oiuiding pipe 11 nearthe end thereof. a

A gasket or gaskets 2O 20 maybe inter-- posed between the collar or seat-lip 19, which may be welded to or otherwise rigidly connected with the pipell and may be provided with accurately finished surfaces adaptedto co-operate with like surfaces, shown as flat, upon the interior of the flange 18 and on thebearing plate 15 shown as constitutinga complete ring; and the perfection of oneor both of the mentioned pairs of engaging surfaces may in.

fact be such as to obviate the need forgaskets. A considerable clearance may be permitted between the cylindrical surfaces 21 of the flange 18 and the exterior surface 22 of the pipe 11, in order'to enable the casting or angle fitting 13 to be slid into position over the upper. or outer end of the said pipe .(or over, an elbow'provided with a similar collar) and a like clearance may be permitted between the cylmdrlcal surface 23 on the interior of the bearing plate or annulus and the'external surface 24 of the inessarily in engagement therewith.

in the opening 1 1, which must'be larger than the flanged opening above mentioned;

and the plate 15 is also intended to be provided with means, such as holes 27 engageable by a suitable wrench, for its insertion, adjustment, or removal, and with any prescrew or screws 28. I

The outlet pipe 12, or its equivalent,-may be connected with the main angle casting 13, or its equivalent, in any suitable way, as by the threaded connection illustrated at 29;

ferred type of locking means, such as a and it will be'understood that either of the mentioned p1pes may in practice serve as an inlet pipe, andthat either of said pipes may be rotated about the axis of that pipe which carries the bearing collar 19, or its equivalent, and also that the pipes between which relative rotation is to be permitted may. meet at various angles.

An embodiment of my invention in which a tubular element 11' in the formof an elbow and a pipe l2 m'eet at an angle of approximately 135, is'separately illustrated in Fig. 3-in which figure the analog 7 of the mentioned parts is suggested by the use of primed numerals corresponding generally to those applied to Figs. 1 and 2. To suggest special uses of the openingsinto which the plugs 26 and 26 are shown as threaded,

- (rather than clamped) I show the plug 26 as having a smaller plug 26 removably secured therein, to permit the optional insertion of a test cock 30; and I show the plug 26' as equipped with a pressure gauge 30;

i I but it will be: understood that any desired alternative subsidiary equipment, might be substituted for the last-mentioned devices; and a pipe providing an alternative inlet or outlet might be substituted for either of I the mentioned-plugs.

.Although I suggest in Fig; 1 the use of my novel pivotal joint in the downward delivery of oil or the like through a valved inlet pipe 11 and a laterally movable outlet pipe 12, the latter extending at an angle from the swivel or angle casting 13, so that it is adapted to deliver alternatively into any one of a plurality of receiving funnels 31'disposedin an are about the axis of the pipe 11, it will be understood that pivotal joints of the general character described are suitable for uses too numerous to mention; and although I have herein described and illustrated in detail but two embodiments of my invention, it will also be appreciated that various additional modifications might be devised, and that various features of my invention might be independently used, by

I claims.

I claim asmy invention:

. those skilled in the art to which this case re- 1. In anorganization of the general character described, an angle fitting provided with three openings; one of these being a threaded opening :for a tubular element,

another sing a flanged and internally threaded opening for a tubularelement :pro-

xvided with a cooperative annular flanged collar adapted to be retained between said flange and a bearing element mounted in said'threads, and the third being anopening exceeding in diameter said flanged opening, in order topermit the insertion ofsaid hearing element therethrough, the interior of said angle fitting being an unobstructed space and said third opening being provided with an interior thread and with a plug of greater diameter than said bearing element.

2. In means for pivotally connecting tubular elements whose axes extend in different directions: an angle casting providedwith aninwardly extending flange upon an outer end of said casting, said flange being engageable by a bearing collar on" oneot said tubular elements; a bearing plate in the form of a separate ring removably secured eac en a me wi'i sa'c ca ti b thr led g e nt thn ll sn andin engagement with said collar; and

means permittingthe bodily insertion or removal of said bearing plate, said bearing collar being held between parallel bearing faces provided respectively by said flange and said plate, said bearing plate being externally threaded and internally finished to "interfit with a portion of a tubular element extending therethrough.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 1th day of September, 1925.

" .EDVVIN C. WEISGERBER. 

